Vehicle Adsorption Heat Pump Switching for Efficient Cabin Heating
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicle air conditioning devices equipped with adsorption heat pumps do not effectively utilize the adsorption heat pump for heating, resulting in suboptimal heating efficiency.
Innovation Solution
The implementation of an adsorption heat pump-equipped vehicle air conditioning device with a controller-activated switching valve system that connects heat exchangers between different circulation routes, allowing the heat of condensation and adsorption to be utilized as auxiliary heat sources during heating, and efficiently switches between cooling and heating modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the adsorption heat pump is not actively utilized during heating, then the device complexity is reduced, but the heating efficiency deteriorates
Solution Approach 1:
The adsorption heat pump is designed to perform both cooling and heating functions. During heating mode, the system actively utilizes the adsorption heat pump by connecting it to the second circulation route through the switching valve, enabling it to serve as an auxiliary heat source alongside the high-temperature heat source, thus improving overall heating efficiency without significantly increasing system complexity
Solution Approach 2:
The system employs a switching valve that can dynamically connect or disconnect the adsorption heat pump from the second circulation route based on operating conditions. This dynamic switching allows the system to optimize heating efficiency by actively engaging the adsorption heat pump when beneficial, while maintaining simpler operation when not required
2Use of energy by moving object
If the second heat exchanger on the desorption process side is connected to the second circulation route, then the heating efficiency is improved, but the device complexity increases
Solution Approach 1:
The second heat exchanger is designed to serve multiple purposes: it functions as a condensation heat exchanger during cooling mode and as a heating heat exchanger during heating mode. By connecting it to the second circulation route through the switching valve, the system can actively utilize the adsorption heat pump for heating, improving efficiency while managing complexity through multi-functional design
Solution Approach 2:
The switching valve acts as an intermediary component that manages the connection between the second heat exchanger and the second circulation route. This intermediary device enables the system to activate the adsorption heat pump for heating when needed, improving heating efficiency by facilitating heat transfer from the desorption process, while keeping the system configuration manageable
3Use of energy by moving object
If the first heat exchanger on the adsorption process side is connected to the second circulation route, then the heating efficiency is improved, but the device complexity increases
Solution Approach 1:
The first heat exchanger is designed to function in multiple modes: it serves as an evaporation heat exchanger during cooling and as a heating heat exchanger during heating mode. By enabling its connection to the second circulation route through the switching valve, the system can utilize the heat of adsorption as an auxiliary heat source, improving heating efficiency while maintaining manageable system complexity through versatile component design
Solution Approach 2:
The switching valve serves as an intermediary that controls the connection between the first heat exchanger and the second circulation route. This allows the system to actively engage the adsorption heat pump for heating by routing heat from the first heat exchanger when beneficial, improving heating efficiency through controlled heat transfer while keeping the system configuration manageable
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration enhances heating efficiency by utilizing auxiliary heat sources and allows for a simple switching between cooling and heating modes, improving overall performance.
Implementation Method 1
an adsorption process and a desorption process being performed repeatedly inside the vessels; a first heat exchangers respectively disposed inside each of the adsorption sections
Implementation Method 2
an evaporation and condensation section inside which a refrigerant is sealed; the heat of condensation generated by the refrigerant during the desorption process can be utilized as an auxiliary heat source
Data Source
AI summary
An adsorption heat pump-equipped vehicle air conditioning device comprising: an adsorption heat pump that includes a plurality of vessels, each of which includes an adsorption section housing an adsorbent and an evaporation and condensation section inside which a refrigerant is sealed, an adsorption process and a desorption process being performed repeatedly inside the vessels; first heat exchangers respectively disposed inside each of the adsorption sections; second heat exchangers respectively disposed inside each of the evaporation and condensation sections; a first circulation route for circulating refrigerant between a high temperature heat source and a heater core; a second circulation route for circulating refrigerant between the adsorption heat pump and an interior heat exchanger, wherein the second circulation route is connected to the adsorption heat pump through a switching valve; and a controller that controls switching of the switching valve.