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

The bad of actor of success or failure that designs plan to connect air conditioning project to design to warming count for much. In recent years, the rapid development as science and technology and right energy-saving rise ceaselessly with what environmental protection asks, warm plan is devised newly in opening air conditioning field a large number of emerge in large numbers, be aimed at same a design project, a few often can be plant, ten kinds even a few kinds of different design program can choose, design personnel must undertake much program compares the job that picks with actor, economy of design program technology is becoming an influence to warm quite a when connect air conditioning to design quality and efficiency main job. Warm the evaluation ingredient that understands air conditioning to devise plan is very much, very difficult ration states a few elements, a lot of elements are not provided again can compare a gender, program of every kinds of design often has respective actor drawback, face numerous design program, because consider the angle of the problem to differ, each square view often each are not identical, be widely divergent even. A few troubled conditions that exist in designing plan to compare at present make design personnel not know what to do. How to connect air conditioning to design plan to undertake scientific comparison and actor are chosen to warming, it is to warm design personnel is in an air conditioning to design difficult problem of a when often encounter in the job main technique actually. Author basis is engaged in a few experience that graph of design, careful and program evaluation work, a few problems that note to warming in connecting air conditioning to design plan to compare, answer undertake the analysis of shallow. 1, feasibility and but * sex problem can satisfy use requirement, this is the main problem of Lv of plan feasibility take an examination. Design program should accord with country and local government to concern code and normative requirement, include to concern the requirement of environmental protection; The requirement that designs plan to should satisfy concerned respect (wait for) like power supply, air feed, water supply, heat addition, answer special take into account the circumstance of long-term, change of these conditions. Cold bear of thermic load of the current situation of resource of geological situation of place of Lv of the take an examination when using fountainhead to heat up pump to devise plan for example, groundwater and metabolic trend, winter and summer is lopsided the heat that produces (cold) the problem such as save up effect. Taller to the parameter requirement such as temperature and humidity or more special craft sex warms a project of air conditioning design, answer design program to undertake annual operating mode is analysed, the adaptability that with ensuring its are in conditions of all sorts of the weather outdoor issue annual. To a few special cases that cannot use standard device, right nonstandard equipment should raise detailed parameter requirement, and what put forward parameter asks to answer reasonable and feasible. Whether having ample computer room area also is the issue that feasibility of judge design program must consider, especially to a few circumstances that transform project and floor area to compare insecurity. The main project that assures indoor air parameter to annual of a few requirements and breakdown of air conditioning system stop machine general to produce serious losing place, be like spaceflight emissive field, the job of the equipment in system of Lv of take an examination but * sex and backup problem, undertake the system works but * sex analysis. Below this kind of circumstance, parameter of the atmosphere outdoor and safety factor are decided really also answer special consideration. 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. 3, adjust gender and maneuverability problem warm the capacity that opens air conditioning system is to press those who be close to condition of annual worst weather to decide normally, because this system is due better adjustment function, in order to get used to the change of annual bear. Adjust the systematic program with good performance, if adopt the plan of system of VAV air conditioning and system of air conditioning of VRV frequency conversion, one of second investment normally taller, but moving specific power consumption is lesser, answer to consider these factors integratedly when economy is calculated and be compared. To part-time use office building, office building and education building, design program should get used to his nightly the adjustment when working asks. Designing the management of plan to operate convenient sex is the problem that the user cares very. Of level of automation of air conditioning system rise, can reduce the amount of administrator and labor intensity, make artificial cost decreases thereby, but make investment increases, rise to handling the demand of personnel quality. Whether does air conditioning system use automation, should mix according to actual condition requirement, classics technology economy decides quite. Often adjust to system of large air conditioning and need the project with pilot more equipment, appropriate uses automation, in order to reduce the workload of operation management. But automation system should simplify as far as possible, the economy with improving a system and but * sex. The valve that operates to the ability when only season is changed is unfavorable use automation. The structure that when differring to a few each parts, uses or each part rent the commerce of different use unit is built, systematic setting should consider to part to management is controlled and run charge to part the requirement that statistic hands in. Turn 4, security problem
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