Refrigeration – Processes – Gas and liquid contact
Patent
1996-11-19
1998-07-07
Caposseia, Ronald C.
Refrigeration
Processes
Gas and liquid contact
62304, 16510422, F28C 100
Patent
active
057751145
DESCRIPTION:
BRIEF SUMMARY
TECHNOLOGY FIELD
This invention relates to refrigeration equipment, and more particularly to an air conditioner heat pump with a low pressure difference, which uses a "differential cold valley pipe" as a heat exchanger and air energy as the primary refrigeration (heating) cycle power, and the like (hereinafter simply called "a figure 8-form machine").
BACKGROUND OF THE TECHNOLOGY
Air energy here refers to the part of energy contained in the ambient air which may be used for refrigeration or heating. The "differential cold valley pipe" (3-pipe) is a plate-type high efficiency heat exchanger featuring a large heat flow rate per unit area and enabling the end temperature difference for heat transmission to approach zero asymptotically. The differential cold valley pipe is set forth by myself in Chinese Application No. 92108350.5 for Invention Patent. Differential cuts a side fluid passageway for a flat metallic heat conducting area or strip in the vertical and another side in the horizontal adiabatic into innumerable micro-isotherm heat exchange zone from high temperature to low one. The fluid to be refrigerated (heated) can always obtain the lowest (highest) temperature point named "cold (hot) valley". Therefore the heat exchange of the fluids on two sides of the heat conducting strip is a differential endothermic process and a differential exothermic one respectively.
The thermodynamic cycle theory for present air conditioners is according to the Carnot and Lorentz cycles which can not utilize air energy efficiently. Next, these heat exchangers are isotherm heat exchangers that do not permit the air that is to be refrigerated (heated) to obtain the lowest (highest) temperature, and the heat transmission temperature difference is common above 5.degree. C. The above two aspects result in that the thermodynamic cycle efficiencies for current air conditioner on the market that are relatively low and in which the EER value can only reach about 3. Therefore, high energy consumption is the most significant deficiency among existing air conditioners.
BRIEF SUMMARY OF THE INVENTION
The energy control of high quality air is the quest, or goal for modern air-conditioners. Energy conversion efficiency in the process of refrigeration is a focus for the subject. This invention first focused on raising the efficiency of the heat exchange and the thermodynamic cycle, and making full use the air energy, in order basically to solve the problems of high energy consumption, bad air quality and limited chlorofluorocarbons (CFCs) use, the three great problems that are faced by the current air conditioner industry.
This invention relates to a figure 8-form thermodynamic cycle for air conditioners with all fresh air (simply called a figure 8-form machine) composed of an air energy heat pump J pipe (J.sub.1), a supercondensation J pipe (J.sub.2) and an energy transfer heat pump (M) with a low pressure difference, permitting the full utilization of the air energy as the power for a refrigeration cycle. It compares with current vapor compression or absorption air conditioners: J.sub.1 corresponds to an evaporator and a generator for concentrating absorbent; J.sub.2 corresponds to a condenser and an absorber. The working substance is a mixture composed of an absorbent i and a refrigerant x. As a result, the figure 8-form machine is a dual body that combines vapor compression and absorption refrigeration. The "supercondensation", moreover, means that the working substance condenses under the low temperature and low pressure.
In J.sub.1, the outdoor air (air to be refrigerated), under the action of the fan along the ventilating channel of J.sub.1, releases heat to the lowest temperature point, or the cold valley temperature T.sub.0 from the outdoor temperature T.sub.k with the temperature changing continuously and then is discharged into the interior. In another side of J.sub.1, the working substance flow channel with working pressure P.sub.1 of the plane-shaped heat conducting strip and the weak solution g.sub.1 that is composed
REFERENCES:
patent: 4938035 (1990-07-01), Dinh
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