Solar adsorption heat pump and evacuated tube adsorption heat pump and desalination system

A system comprising:

• a manifold;
• and
• a plurality of evacuated tube adsorption heat pump and desalination (ETAHP&D) modules, each ETAHP&D module comprising:
• a tube configured to receive energy from an energy source;
• an adsorbent located within the tube;
• an adsorbent bed cage located within the tube and defining a storage volume containing the adsorbent;
• a threshold configured to stabilize the adsorbent bed cage;
• a condenser/evaporator positioned within the interior of the tube and spaced apart from the adsorbent bed cage;
• an insulation at least partially surrounding the condenser/evaporator;
• a removable cap fastened to the tube;
• a selective absorber configured to absorb solar energy at the adsorbent bed;
• a connector operable to fasten the tube to the manifold;
• and
• a heat exchanger positioned adjacent to the condenser/evaporator and configured to enhance heat transfer between the condenser/evaporator and an external cooling or heating load.