Present　technologies,　which　use　either　solid　adsorption　or　solid-desiccant　indirect　evaporative　cooling　cannot　meet　refrigerating　capacity　needs.　To　address　this,　we　have　introduced　a　new　double-effect　hybrid　air　conditioning　system.　In　this　paper　we　establish　a　model　for　a　double-effect　hybrid　air　conditioning　system,　which　combines　the　technologies　of　adsorption　refrigeration　using　zeolite　13X-water　as　the　working　pair　and　indirect　evaporative　cooling,　so　that　it　can　be　used　in　commercial　and　combat　vehicles.　We　establish　two-dimensional　(2-D)　mathematical　model　of　the　adsorbent　bed　and　model　of　indirect　water　evaporative　cooling　system.　Experiments　were　carried　out　for　the　purpose　of　simulating　the　adsorption　refrigeration　cycle,　verifying　the　physical　and　mathematical　models,　determining　boundary　conditions,　measuring　the　cooling　capacity　of　the　refrigeration　cycle　and　verifying　the　efficiency　of　the　double-effect　hybrid　automotive　air　conditioning　system　combining　adsorption　refrigeration　and　indirect　evaporative　cooling.　By　analyzing　the　theoretical　aspects　of　this　system,　together　with　numerical　simulation　and　experimental　research,　we　find　out　that　this　system　is　feasible　in　overcoming　the　low　cooling　capacity　and　low　coefficient　of　performance　(COP)　of　a　system　that　only　uses　solid　adsorption　refrigeration.　The　desorption　rate　of　this　double-effect　hybrid　vehicular　air　conditioning　system　is　14%　faster　than　that　of　a　solid　adsorption　refrigeration　system,　and　the　cooling　capacity　of　this　double-effect　hybrid　system　is　10%　greater　than　that　of　a　solid　adsorption　system.　Indirect　evaporative　cooling　increases　fresh　air　quantity,　thus　improves　air　quality.　The　double-effect　hybrid　automotive　air　conditioning　system　has　various　advantages,　especially　in　improving　the　coefficient　of　the　refrigeration　cycle,　for　the　following　reasons:　the　condensing　of　the　adsorbent　and　the　condenser　can　be　strengthened　by　cooling　air　from　an　indirect　evaporative　cooling　system.　Another　portion　of　the　cooling　air　from　the　indirect　evaporative　cooling　system　can　be　directed　to　the　area　that　needs　air　conditioning　This　portion　has　the　function　of　exchanging　air　at　a　constant　temperature,　improving　air　quality,　and　assuring　the　safety　and　health　of　people.