what uses a heat pump? what has a heat pump in it?
125713
It is not a pump like a centrifugal or axial pump that we used to transfer fluids but actually we used the term HEAT PUMP to a system which transfer heat from a low temperature reservoir to a hot temperature reservoir through supply of work. It consists of component such as condenser, compressor, expansion valve and evaporator. \n\nThere are several types of heat pump system such as gas compression heat pump and phase change heat pump. \n\nApplication of heat pump can be found normally in domestic air-conditioning system. In a four seasons country the system normally has a valve that can "switch" to become a heater or cooler by reversing the flow of refrigerant.
505858
Does the "promotional litearture" keep you warm?  Try burning it, that might produce some heat.\n\n$300 is too much, you need that money to pay your heating bill.  Anyway, I seriously doubt quartz is any more efficient than a cheap space-heater.  They're both 100% efficient at converting electricity into heat.  To improve on that you need a "heat pump".  \n\nThose are just an air-conditioners that are turned around, so that instead of pumping heat out in the summer, they pump heat inward in the winter.  To use one you need a source of heat that is above 40-50 deg.F, such as well water.\n\nYou can als:\ndress more warmly\nturn up the thermostat\nget another space heater\nadd insulation to your house
30512
Heat is the measure of internal energy that an object has.  Heat flows from a hotter object to a colder object only.  The internal energy flows from the higher level to the lower level.  This is similar to flowing water.  The water in a lake at the top of the hill has more potential energy than the water in the lake at the bottom of the hill.  The water will flow downhill only.  The water flows from the location where it has a higher energy level to the location where it can have a lower energy level.
131911
Recuperator is a heat exchanger which helps to boost the efficiency of gas turbine engines on those air is compressed, burned with fuel, and used to drive a turbine. \n\nAnd you know what is generator now just differentiate it
219194
Heat is energy. It can be transformed from heat to another form of energy like mechanical energy, but the the second law of thermodynamics states that for a closed system entropy either increases or stays the same. This means that wasted heat energy in any system either increases or stays the same unless additional energy enters or leaves the system. If the system is the entire universe, then anytime work is done, either none or more heat is produced . . . the universe can't "unheat" or cool itself (as a whole). Pockets of the universe can reduce entropy, but only by shifting that entropy to another location in the universe.\n\nWhat does this mean? It means that all forms of work produce heat as a byproduct. Even wind produces frictional heat, and wind comes from temperature gradients (uneven heat). Electricity is produced by heat (even nuclear fission power or future fusion power heat water to produce steam to turn a turbine which turns a generator that produces electricity). Hydrogen is produced by reforming technology in refineries and requires heat. Hydrogen can be produced from water by using electricity which uses heat. Ion thrusters use electricity (currently from small nuclear power systems in space probes which produce heat to produce the needed electricity). \n\nI don't think that we're going to get away from heat energy anytime soon.
189911
A desert cooler takes advantage of very low relative humidity to acheive its cooling properties.   Rather than relying upon a refrigerant system (i.e. Freon) with a compressor to circulate the refrigerant, a desert cooler uses evaporation of water to remove heat.  With a low relative humidity, water can evaporate quite rapidly, taking a lot of heat energy along with it.  \n\nThere are a variety of different techniques to exchange and remove heat from the air.  One that is used in less arid climates is called a swamp cooler, in which water is pumped from a pond, through a heat exchanger and then back through a fountain in the pond.  The fountain aids in the evaporative process, helping to keep water cooler.  \n\nWhile a desert cooling system may not be able to develop as cold of temperatures as a refrigerant-based system, it still can effectively reduce the air temperature, and do so using less electricity since a compressor is not required to run.
71063
just saying a heat absorber is not enough , for what purpose , this is science and accurate answer , cooper , aluminium , water , oil. ..etc , pls define more
500735
Geothermal heat would help a lot.  First we should be certain that our homes are well insulated.  If everyone was to install a ground water heat pump, it would lower heating bills (and fuel consumption) and make it cheap to cool in the summer.  Heating and cooling are two of our biggest energy demands.  What you are suggesting makes a ton of sense.
552913
I would suggest you check out the yellow pages for Houston, TX; Tulsa, OK you will find several manufacturers for heat exchangers, pressure vessels, tanks, heaters and pumps.\n\nAssuming you have sufficient definition of each item in terms of size, capacity, surface area, working pressure, materials of construction you should be able to get estimates of just about any piece of equipment you will need.\n\nI do not wish to discourage you but, if you don't have a process flow diagram with a heat and material balance for the plant you are going to have a very hard time developing a cost estimate using major equipment cost.
140880
Cooling, Heating, and Dehumidifying\n\n3in1Fig1.jpg (23385 bytes)\n\n    As you turn on the unit,  the refrigerant in the system (in liquid form and with low temperature and low pressure), pressurized by the compressor, turns into gas. The gas then enters into the condenser and perform a process called heat exchange. In this process, refrigerant turns back into liquid by releasing heat energy to the air (Airflow 2) and becomes cooler than before. The liquid refrigerant with cooler temperature enters into the evaporator and perform another heat exchange with the air (Airflow 1). In this process, the heat energy in the air is absorbed by the refrigerant in the evaporator and the resulting cooler air is exhaust through the front vent. Note: Airflow 1 and Airflow 2 are independent of each other.\n\n     \n\n    Because the evaporator is lower in temperature than the air, water vapor will condense if the evaporator's temperature is lower than the ambient dew point. This cycle of condensation will lower the Relative Humidity of the room and thereby achieve the goal of dehumidification.\n\n    3in1Fig3.jpg (16322 bytes)  3in1Fig4.jpg (19482 bytes)\n\n    However, if the unit is used as a dehumidifier, remember to remove the air exhaust duct from the back in order to effectively dehumidify the room. If not, constant air flow from the outside (in order to compensate the air flow to the outside through the air exhaust duct) will make the dehumidifying process ineffective.\n\n     \n\n    Heating function (optional in most models) is included with the intention to make this unit an all-season air-conditioning unit. Operationally, this function is just the same as other features. You can operate the fan, louver, and timer, just as you can for cooling.\n\n________________________________________________________________
474164
Basically energy derived from steam or heat escaping from deep underground.  Kinda like harnessing "Old Faithful".\nHTH
88944
assuming evap. is short for evaporate and need a way to evaporate water adding heat is the most used way to evaporate water. But i don't know that this is what your looking for. I forgot most of physics.
530785
HVAC OUTLETS- I assume you mean the fart fan from the restroom or some other air exhaust because nobody would be stupid enough to install a heat pump in that climate unless it was designed in Texas.  If I were you I would think about lowering the relative humidty of the air leaving as it is condensing and then freezing on the freezing outside surfaces or heating the outside surfaces periodically.  I wonder if there is like an economizer box you could put on it and then just periodically heat the inside of the economizer box.  \n\nYou could take an old breadbox like my grandmother used to have and stick an old '57 chevy radiator in it.  Let that part be outside and where the water vapor in the exhaust vent would condense and freeze on the fins on the radiator.  Then every once in a while, you could run some hot water or light some of those farts and run the exhaust gases through the water side of the radiator to defrost the coils.\n\nBut that brings up another issue as far as risk assessment.  I saw some internet videos of people blowing up from trying to light farts- its a cheap source or heat but the safety people dont like it cause someobdy might get hurt and the environmental people dont like it cause they have to fill out a bunch of EPA paperwork to get a permit to operate a hazardous waste treatment facility.  \n\nGood luck and dont eat the yellow snow cause there might be some husky dogs in the neighborhood.
616608
The parts and fabrication of  both pressure vessels and heat exchangers depends on the medium being stored or cooled. It will also depend on the pressure handled by these components.\n Pressure vessels are not much more than a storage tank and can be fabricated by welding two halfs together with a coupling welded at one end or by welding end caps to a cylinder. They can then be anneald or cryogenicly treated depending on their intended use.Some vessels are expanded after welding in a bath of liquid nitrogen. They are first cooled and then subjected to high internal pressure.This process is to stress relieve an object which will be subjected to an extreem thermal envirorment. Once expanded the temperature is raised at a specific rate untill room temperature is acheaved. Stress relieving can also be done in an oven. In this case the object will be raised in temp, held for a specific time and then cooled at about one degree F untill back at room temperature.\n Some pressure vessels called Acumulators are used to maintain pressure rather than store excess fluid or gas. In this case a blader is built into the vessel and one side is charged to whatever you need. An example of this is the expansion tank in a hydronic heating system.\n  Heat exchangers can be for liquid or gas. In a liquid system either heated or cooled liquid is pumped through the shell while the fluid passes through tubes which are bathed by this liquid.Tubes are welded or brazed to plates which are in turn welde or brazed inside the shell end caps are bolted to the flanges of the shell with couplings for the pipeing. \nHeat exchangers can also be used to convey heat to a room such as a radiator or be air cooled as in an automobile radiator.\n Gas type heat exchangers are used in heating and convey hot flue gasses around which cooler air is passed. This type of design is welded or brazed from stamped sheet metal. I have also seen high volume hot air units in which the shell has an electric heater that the air is passed through. I've only worked with this type once and don't know much about it's manufacture.
667532
There are two main sources of heat on the Earth.  The first obvious one is the Sun.  The second is the Earth itself.  The ground holds the heat from the Sun, but also, radioactive decay within the Earth produces massive amounts of heat.  Most of the heat on the Earth comes from within it.  Because most of the heat comes from the ground itself, as you get farther away from it, it gets colder.
535822
Get an electrical heating element, a DC power supply, a thermometer, a voltmeter and an ammeter.\nPass electricity through the heating element, dipped into a measured volume of water (or salt water) in an insulated cup, and measure the current, the voltage and the time taken. This will give you the heat energy supplied. Measure the temperature rise, and work out how much energy would be required to raise 1g of water (or salt water) by 1 degree Celcius. The answer should be close to 4.2!
257336
Any heating system works on a simple system:\n\n1. A heat source ('boiler') heats a circulating fluid;\n2. The fluid is pumped around the system heating other 'areas'\n3. The slightly cooler fluid is circulated back to the 'boiler' where it is reheated - by doing this we do not have to introduce additional fluid and it is more efficient to reheat already 'heated' fluid.\n\nHope this helps but if you need more drop me a note.