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Warm a program of air conditioning design is a few more relative problem
From;    Author:Stand originally

2, economy contrasts issue economy is to warm a most issue considers in connecting air conditioning plan to compare at present quite. Should notice to compare above all when economy is compared fiducial must agree. Should use identical design the fiducial condition such as price of class of requirement, use circumstance, equipment, the sources of energy, comfortable state, beautiful circumstance undertakes comparative, the scientific sex that such ability assure to plan compares a result and rationality. If undertake to adopting famous brand equipment and the plan that adopt cheap device economy is compared, it is unreasonable apparently; If take no account of the distinction of comfortable sex, new to having wind is supplied and undertake without the program that new wind supplies economy is compared, make right choice impossibly apparently; If take no account of beautiful sex and comfortable sex to undertake economy is compared, it is inequitable apparently to concentrating program of type air conditioning. Investment is a parameter that investment just pays close attention to most, answer when computation invests comprehensive and accurate, cannot leak. Warm investment that connects air conditioning to devise plan includes the investment of all sorts of equipment, conduit, material not only, and should include all sorts of relevant collect fees (the) such as the cost enraging a source that if heating power enters the network fee, equipment that use phone to add,holds cost, natural gas, corresponding installation, debug charge, relevant project management all sorts of collecting fees, relevant water treatment and distribution and control invest, computer room earth is built investment and corresponding the charge of the cop outdoor, and these are omited easily in designing the job actually. As a result of same the manufacturer home of kind of equipment is more, the price each different, the price of all sorts of equipment when because this is in,computation of different program economy is compared should use average price. Above is direct cost, indirect below a few circumstances benefit also should consider integratedly. The area that saves like the air conditioning computer room of guesthouse, restaurant, office building, as business the beneficial result that the room can produce. If use loan to undertake building, overall economy still should consider loan quite interest rate and still borrow the dynamic element such as deadline. Moving specific power consumption and moving charge is warm the important parameter that knows air conditioning to design plan technology economy to must consider quite. Moving specific power consumption besides should calculate warm an air conditioning lead plane (boiler and refrigeration machine) outside specific power consumption, still should calculate other and auxiliary equipment (wait like fan and water pump) specific power consumption. Cannot mix simply according to equipment nameplate power the product of run time will calculate specific power consumption and below the circumstance that Lv of take an examination changes in annual season, the structure is actual the change of bear, equipment of Lv of take an examination is nonstandard at the same time the efficiency below condition. Of the building such as building of office building, education, office building and natatorium warm normally intermittence runs an air conditioning facility, its run time should be the actual run time after deducting machine down time. Different area, different period, different period of time should note in computational process the price of all sorts of the sources of energy may be different. Because influencing factor and not certain factor are more, how to calculate well and truly the building warms the real specific power consumption that connects annual of air conditioning equipment is mixed moving charge, remain a technical difficult problem that did not solve completely at present. Moving charge is like charge of electricity, fuel besides charge of specific power consumption outside cost, coal fired cost, cost burning gas, the water cost that still should include to use up, artificial cost. When economy is compared, save trouble of graph of avoid by all means can use what give out about manufacturer to compare data and result directly. The author ever discovered, to the moving charge of electric heating, 3 different equipment (hot pump of electric boiler, fountainhead and door type lights gas heating furnace) the calculation that manufacturer offers is widely divergent as a result. Those who pass pair of its computation courses is detailed check, the point of view that discovers because consider an issue,different equipment produces manufacturer is different, the existence in computation a few be helpful for the him product, error that goes against other product or hypothesis. To this design personnel should give enough take seriously, the data that provides to manufacturer should be analysed seriously and check. Answer to consider the service life of investment, moving charge and equipment integratedly when design program economy is compared, it is with identical use cycle fiducial, undertake the computation of economic integration sex is compared, and cannot undertake simply comparative according to equipment quote. To having the project of heating and air conditioning requirement at the same time, winter of Lv of take an examination and summertime equipment use an issue integratedly, undertake sex of wintry summer economic integration is compared. To can holding the project that supplies life hot water concurrently, answer to consider the investment that life hot water supplies and specific power consumption integratedly.
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