The Research Of Ground Source Heat Pump System’s Formation Heat Imbalance Countermeasure

Ground source heat pump and central heating has formed its own technicaladvantages through long-term development. But the ground source heat pump islimited to the geographical conditions in application, for example, the ground sourceheat pump used in most of the heating region in our country, will have the problems ofheat load is greater than the cooling load and stratum losing heat,thus affecting thenormal running of ground source heat pump system. In order to reduce and avoid thenegative effect that stratum thermal imbalance brings, researchers did a lot oftheoretical analysis and took the advanced simulation software to simulate theoperating conditions. But overall, the simulations are partial to theoretical researchand there are often some deviations with the engineering practice.Central heating at home and abroad was reviewed in this paper, the researchstatus of ground source heat pump technology and the problems of reality, and on thebasis of thermal equilibrium theory and principles of heat pump technology, the designprinciple of ground source heat pump system is expounded in the paper, discussing thetechnical way inhibit formation heat imbalance. Combination with the engineeringpractice of Datong city intermediate people’s court of the new trial court and ancillaryfacilities engineering of central heating-ground source heat pump (heating) airconditioning system, the system discusses the design principles to ensure that makefull use of ground source heat pump system and energy saving, environmentalprotection advantage for the condition in order to inhibit the problem of formationheat imbalances as the basic goal. Through the calculation that based on the designparameters. And meanwhile the calculation is based on the specific operation strategyof operation parameter prediction and forecast of economic benefit. We obtained thefeasibility of the principle that through the auxiliary heat source load and runningstrategy adjustment to realize formation heat balance and summer cooling load for thedesign reference.The fundamental goal of application of ground source heat pump system isenergy saving, environmental protection, and the solution of any problem is on thebasis of the fundamental goal. The study of this article shows that for this system,which adopts the summer air conditioning cooling load as the design basis, cooperatewith the central heating system as the auxiliary heat source, and make reasonable operating strategy design, not only can solve the problem of formation heat imbalance,at the same time has less effect on energy saving and economic benefits.The research results of this paper is to establish on the basis of the specific casesof the datong court project, the engineering character is the winter heating demand isfar greater than the summer cooling demand, thus leads to the formationheat-imbalance of the ground source heat pump system. The ideal natural conditions isthe winter heat loss and summer heat gain is equal, the project that like this can not setthe auxiliary heat source. Instead, for the area of short heating time, and large airconditioning load, maybe get the formation cleared hot, at this time, you need to set upauxiliary heat source.