# US 2019/0170448 A1 · Adsorption system

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- Number: US 2019/0170448 A1
- Document ID: US20190170448A1
- Status: Published application
- Kind: A1
- Application number: 16/200,496
- Filed: 2018-11-26
- Published: 2019-06-06
- Earliest claimed: 2011-10-21
- Assignees: Massachusetts Institute of Technology
- Applicants: Massachusetts Institute of Technology
- Inventors: Young Suk Nam; Ryan Enright; Shalabh Maroo; Evelyn N. Wang; Shankar Narayanan; Ian Salmon McKay
- Web page: https://patentgrep.com/patent/US20190170448A1

## CPC

- F28D 17/00: Regenerative heat-exchange apparatus in which a stationary intermediate heat-transfer medium or body is contacted successively by each heat-exchange medium, e.g. using granular particles
- B01J 20/205: {Carbon nanostructures, e.g. nanotubes, nanohorns, nanocones, nanoballs (carbon nanotubes per se C01B32/15)}
- B01J 20/226: {Coordination polymers, e.g. metal-organic frameworks [MOF], zeolitic imidazolate frameworks [ZIF] (preparation of metal complexes containing carboxylic acid moieties C07C51/418; MOF's per se C07F)}
- B01J 20/2804: {Sheets with a specific shape, e.g. corrugated, folded, pleated, helical}
- B01J 20/28052: {Several layers of identical or different sorbents stacked in a housing, e.g. in a column}
- B60H 1/3201: {using absorption or adsorption}
- B60H 1/32014: {using adsorption, e.g. using Zeolite and water}
- F25B 17/08: the absorbent or adsorbent being a solid, e.g. salt (F25B17/12 takes precedence)
- B01J 2220/56: Use in the form of a bed
- F28D: HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT (fluid heaters having heat generating means and heat transferring means F24H; furnaces F27; details of heat-exchange apparatus of general)
- B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B60H: ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- F25B: REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS

## Abstract

An adsorption system can be used as part of a climate control system in a vehicle or in any other space requiring heating or cooling.

## Claims

### Claim at position 1

1-13. (canceled)

### Claim 14

A climate control system comprising:
an output of a first adsorbent bed fluidly connected to an input of a condenser;
an output of the condenser fluidly connected to an input of a first reservoir;
an output of the first reservoir fluidly connected to a first expansion valve;
the first expansion valve fluidly connected to an input of an evaporator; and
an output of the evaporator fluidly connected to an input of the first adsorbent bed.

### Claim 15 (depends on 14)

The climate control system of claim 14, further comprising:
an output of a second adsorbent bed fluidly connected to the input of the condenser;
the output of the condenser fluidly connected to an input of a second reservoir;
an output of the second reservoir fluidly connected to a second expansion valve;
the second expansion valve fluidly connected to the input of the evaporator; and
the output of the evaporator fluidly connected to an input of the second adsorbent bed.

### Claim 16 (depends on 14)

The climate control system of claim 14, wherein the first adsorbent bed configured to become operational upon opening the first thermal expansion valve, thereby allowing a fluid to pass through the evaporator before entering the first adsorbent bed.

### Claim 17 (depends on 16)

The climate control system of claim 16, wherein the system is configured to allow to the fluid to pass from the first adsorbent bed through the condenser and the first reservoir before returning to the first expansion valve.

### Claim 18 (depends on 15)

The climate control system of claim 15, wherein the second adsorbent bed is configured to become operational upon opening the second thermal expansion valve, thereby allowing the fluid to pass through the evaporator before entering the second adsorbent bed.

### Claim 19 (depends on 18)

The climate control system of claim 18, wherein the system is configured to allow fluid to pass from the second adsorbent bed through the condenser and the second reservoir before returning to the second expansion valve.

### Claim 20 (depends on 14)

The climate control system of claim 14, wherein the first adsorbent bed comprises:
a plurality of plates;
a layer including an adsorbent material adjacent to a portion of at least one plate; and
a plurality of passages between the plates.

### Claim 21

A method for cooling a vehicle, the method comprising:
releasing a fluid from a reservoir through a thermal expansion valve;
passing the fluid from the thermal expansion valve through an evaporator and into an adsorbent bed, thereby causing the temperature of the evaporator to decrease; and
passing air over the evaporator and into a vehicle cabin to cool the vehicle cabin.

### Claim 22 (depends on 21)

The method of claim 21, further comprising cooling the adsorbent bed to maintain the adsorbent bed at an allowable operating temperature.

### Claim 23 (depends on 22)

The method of claim 22, wherein the adsorbent bed comprises an adsorbent material comprising 13X, MCM-41, MFI, VPI-5, MOF-199, M.sub.g-MOF-74, ZIF, MOF-5, MOF-177, MOF-210, graphite flakes, carbon nanotubes, or a combination thereof.

### Claim 24

A method for heating a vehicle, the method comprising:
releasing a fluid from a reservoir through a thermal expansion valve;
passing the fluid from the thermal expansion valve through an evaporator and into an adsorbent bed, thereby causing the temperature of the adsorbent bed to increase; and
transferring heat from the adsorbent bed into a vehicle cabin to heat the vehicle cabin.

### Claim 25 (depends on 24)

The method of claim 24, further comprising maintaining the temperature of the evaporator above the freezing point of the fluid.

### Claim 26 (depends on 25)

The method of claim 25, wherein the temperature of the evaporator is maintained above a freezing point of the fluid by providing heat to the evaporator from a heat source comprising ambient air, waste heat, an auxiliary heater, or any combination thereof.

### Claim 27

A method for controlling vehicle climate, the method comprising:
operating a first climate control system comprising a first adsorbent bed until a first reservoir of fluid is depleted;
deactivating the first climate control system when the first reservoir of fluid is depleted and activating a second climate control system comprising a second adsorbent bed; and
replenishing the first reservoir with fluid while the second climate control system is activated.

### Claim 28 (depends on 27)

The method of claim 27, further comprising:
operating the second climate control system until a second reservoir of fluid is depleted;
deactivating the second climate control system when the second reservoir of fluid is depleted;
reactivating the first climate control system; and replenishing the second reservoir with fluid while the first climate control system is operating.
