Analisis Eksperimental Pengeringan Bahan Sensitif Panas dan Kelembaban Tinggi dengan Menggunakan Pengering Semprot Searah (Co-Current Spray Drying), Udara Bertemperatur Sedang dan Kelembaban Rendah = Experimental Analysis of Drying of Heat Sensitive Materials and High Humidity Using a Direct Spray Dryer (Co-Current Spray Drying), Medium Temperature Air and Low Humidity