Dishwasher appliance having energy recovery features

A dishwasher appliance, comprising:

• a tub defining a chamber for the receipt of articles for cleaning;
• a sump for collecting liquid from the chamber;
• a fluid circulation conduit for circulating liquid in the tub;
• a first pump downstream of and in fluid communication with the sump, wherein the fluid circulation conduit is downstream of and in fluid communication with the first pump;
• an adsorption assembly, the adsorption assembly comprising a desiccant module and an adsorption conduit extending through the desiccant module;
• a second pump downstream of and in fluid communication with the adsorption conduit, the second pump further upstream of the sump;
• a first heater spaced from the adsorption assembly, the first heater operable to heat liquid flowed therethrough from the first pump;
• a second heater spaced from the adsorption assembly, the second heater operable to heat liquid flowed therethrough from the second pump;
• a valve operable to selectively supply liquid from the second pump to the sump and to the adsorption conduit.

A dishwasher appliance, comprising:

• a tub defining a chamber for the receipt of articles for cleaning;
• a sump for collecting liquid from the chamber;
• a fluid circulation conduit for circulating liquid in the tub;
• a first pump downstream of and in fluid communication with the sump;
• an adsorption assembly, the adsorption assembly comprising a desiccant module and an adsorption conduit extending through the desiccant module;
• a second pump downstream of and in fluid communication with the adsorption conduit, the second pump further upstream of the sump;
• a first heater spaced from the adsorption assembly, the first heater operable to heat liquid flowed therethrough from the first pump or the second pump;
• a first valve operable to selectively supply liquid from the first pump through the first heater and to the fluid circulation conduit;
• a second valve operable to selectively supply liquid from the second pump to the sump and to the first heater;
• and
• a third valve operable to selectively supply liquid flowed through the heater to the fluid circulation conduit and to the adsorption conduit.